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qede: Reconfigure rss indirection direction table when rss count is updated 

Rx indirection table entries are in the range [0, (rss_count - 1)]. If
user reduces the rss count, the table entries may not be in the ccorrect
range. Need to reconfigure the table with new rss_count as a basis.

Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sudarsana Reddy Kalluru 2016-10-21 04:43:43 -04:00 committed by David S. Miller
parent 0e19182738
commit ed0dd91515
1 changed files with 7 additions and 0 deletions
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7
drivers/net/ethernet/qlogic/qede/qede_ethtool.c
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@ -822,6 +822,13 @@ static int qede_set_channels(struct net_device *dev,
edev->req_queues = count;
edev->req_num_tx = channels->tx_count;
edev->req_num_rx = channels->rx_count;
/* Reset the indirection table if rx queue count is updated */
if ((edev->req_queues - edev->req_num_tx) != QEDE_RSS_COUNT(edev)) {
edev->rss_params_inited &= ~QEDE_RSS_INDIR_INITED;
memset(&edev->rss_params.rss_ind_table, 0,
sizeof(edev->rss_params.rss_ind_table));
}
if (netif_running(dev))
qede_reload(edev, NULL, NULL);